Home / 1,991,610.48-2,748,409.88-1,132,170.78

Finding the Fourth Proportional to 1,991,610.48, 2,748,409.88 and 1,132,170.78

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Solution

The fourth proportional to 1,991,610.48, 2,748,409.88 and 1,132,170.78 is: 1,562,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,610.48 : 2,748,409.88 = 1,132,170.78 : x
  2. Step 2: Convert to fraction form
    1,991,610.48/2,748,409.88 = 1,132,170.78/x
  3. Step 3: Cross multiply
    1,991,610.48x = 2,748,409.88 × 1,132,170.78
  4. Step 4: Simplify right side
    1,991,610.48x = 3,111,669,357,599.31
  5. Step 5: Solve for x
    x = 3,111,669,357,599.31/1,991,610.48
  6. Step 6: Final answer
    x = 1,562,388.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.